- SEG Systems, Mattress Firm , Custom Color
- 189.55 square metre(s)
- United States (Dallas)
The largest illuminated advertising sign (indoors) measures 189.55 m² (2,040 ft² 55 in²), and was achieved by SEG Systems and Custom Color on behalf of Mattress Firm (all USA) in Dallas, Texas, USA, on 25 September 2019.
Several million attendees of the State Fair of Texas will witness the Mattress Firm advertising sign at the company's exhibit.